Comprehensive analysis of emitted and endogenous floral volatiles and aroma characteristics in 23 hyacinth (Hyacinthus orientalis) cultivars

IF 4.6 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae Pub Date : 2026-09-01 Epub Date: 2026-09-13 DOI:10.1016/j.scienta.2026.115166

Peng Zhang, Tinghao Liu, Hualong Li, Fang Xu, Yirui Chen, Kun Yang, Ming Sun

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引用次数: 0

Abstract

Hyacinth (Hyacinthus orientalis) is a globally important bulbous ornamental plant with high ornamental and commercial value. However, the chemical characteristics of its floral fragrance remain poorly understood, which limits the targeted breeding of fragrant hyacinth cultivars and the industrial production of hyacinth essential oil. This study adopted HS-SPME and OSE coupled with GC–MS to characterize the emitted and endogenous VOCs in 23 hyacinth cultivars at the full-blooming stage. Correlation analysis between petal color parameters and VOC contents (emitted and endogenous), multivariate statistical analyses (PCA, PLS-DA), and linear regression analysis were conducted to assess VOC emission patterns, and ROAVs were calculated to screen the key aroma-contributing compounds. A total of 74 emitted VOCs (34–48 per cultivar) and 42 endogenous VOCs (24–32 per cultivar) were identified. Phenylpropanoids/benzenoids and terpenes dominated emitted VOCs. Notably, endogenous VOCs mainly covered phenylpropanoids/benzenoids. VOC emission ratios were negatively correlated with boiling points and molecular weights, but positively correlated with vapor pressures. Phenylpropanoids/benzenoids and several terpenes exhibited significant correlations with color parameters (e.g., L*, a*, b*, and C*). PLS-DA identified 29 characteristic emitted and 14 characteristic endogenous VOCs. Based on the ROAV results, the cultivars were classified into five fragrance types: “Floral”, “Floral and Chemical”, “Green/Leafy”, “Green/Leafy and Fruity”, and “Spicy”. Hierarchical cluster analysis based on the integrated traits further validated the cultivar grouping patterns. This study systematically elucidates the VOC composition, release dynamics, and fragrance classification of hyacinth, providing a theoretical foundation for fragrance-oriented breeding and essential oil production.

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23个风信子（Hyacinthus orientalis）品种外源挥发物及香气特征的综合分析

风信子（Hyacinthus orientalis）是全球重要的球茎观赏植物，具有很高的观赏价值和商业价值。然而，由于对其花香的化学特性了解甚少，这限制了有针对性地选育香型风信子品种和风信子精油的工业化生产。本研究采用HS-SPME和OSE联合GC-MS对23个风信子品种盛花期的挥发性有机化合物（VOCs）和内源挥发性有机化合物（VOCs）进行了表征。通过花瓣颜色参数与挥发性有机化合物（外源和内源）的相关性分析、多元统计分析（PCA、PLS-DA）和线性回归分析来评估挥发性有机化合物（VOC）的排放模式，并计算挥发性有机化合物（roav）来筛选关键的香气贡献化合物。共鉴定出74种外源挥发性有机化合物（34 ~ 48种）和42种内源挥发性有机化合物（24 ~ 32种）。苯丙类化合物/苯类化合物和萜烯类化合物是主要的挥发性有机化合物。值得注意的是，内源性VOCs主要覆盖苯丙类/苯类化合物。挥发性有机化合物排放率与沸点和分子量负相关，与蒸汽压正相关。苯丙类化合物/苯类化合物和几种萜烯与颜色参数（如L*、a*、b*和C*）有显著的相关性。PLS-DA鉴定出29种特征性排放VOCs和14种特征性内源VOCs。根据ROAV结果，将品种分为“花香型”、“花香化学型”、“绿叶型”、“绿叶果味型”和“辛辣型”5种香味类型。基于综合性状的层次聚类分析进一步验证了品种分组模式。本研究系统阐述了风信子的挥发性有机化合物组成、释放动态及香气分类，为香型育种和精油生产提供理论依据。

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来源期刊

Scientia Horticulturae 农林科学-园艺

CiteScore

8.60

自引率

4.70%

发文量

796

审稿时长

47 days

期刊介绍： Scientia Horticulturae is an international journal publishing research related to horticultural crops. Articles in the journal deal with open or protected production of vegetables, fruits, edible fungi and ornamentals under temperate, subtropical and tropical conditions. Papers in related areas (biochemistry, micropropagation, soil science, plant breeding, plant physiology, phytopathology, etc.) are considered, if they contain information of direct significance to horticulture. Papers on the technical aspects of horticulture (engineering, crop processing, storage, transport etc.) are accepted for publication only if they relate directly to the living product. In the case of plantation crops, those yielding a product that may be used fresh (e.g. tropical vegetables, citrus, bananas, and other fruits) will be considered, while those papers describing the processing of the product (e.g. rubber, tobacco, and quinine) will not. The scope of the journal includes all horticultural crops but does not include speciality crops such as, medicinal crops or forestry crops, such as bamboo. Basic molecular studies without any direct application in horticulture will not be considered for this journal.